Brule County, South Dakota
5 ZIP codes · Avg score 59/100 · Grade C · Updated 2026-06-04
Although much of Brule County meets baseline standards, some of its 5 ZIP codes show violations that merit closer attention.
How Brule County Compares
How Brule County Compares
Brule County scores 1 points below the South Dakota state average (60/100) and 9 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Brule County, South Dakota
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.9 (asthma 11.2%, diabetes 14.1%)
Estimated additional annual cost per homeowner: $534, driven primarily by water_lead
Infrastructure: 0.382% avg pipe failure probability, 25% of ZIPs at high risk
71.3% of homes built before 1978 (lead paint era)
Violation History (2022–2024)
→ Stable trendEPA violation counts by year across Brule County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 1 violation. Past 5 years: 2 total (2 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $534
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
2,730 housing units in Brule County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Brule County
Remediation costs are relatively manageable for most homeowners in Brule County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Brule County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Brule County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Mid-dakota Rural Water | 11,833 | 3 |
| 2 | Aurora-brule Rural Water System | 2,750 | 3 |
| 3 | RANDALL COMMUNITY WATER DISTRICT | 6,248 | 3 |
| 4 | Kimball | 572 | 3 |
| 5 | Chamberlain | 2,473 | 0 |
6 total water systems serve Brule County.
All ZIP Codes in Brule County
5 ZIP codes tracked in Brule County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 57325 | Chamberlain | 70 | B | 0 | $208K |
| 2 | 57326 | Chamberlain | 66 | C | 0 | — |
| 3 | 57355 | Kimball | 64 | C | 3 (2 health) | $169K |
| 4 | 57370 | Pukwana | 53 | D | 0 | $188K |
| 5 | 57339 | Fort Thompson | 40 | D | 0 | $101K |
Recommended Buyer Guides for Brule County
Eight risk categories drive the selection — PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback — and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.
- Best Lead Paint Test Kits — 71.3% of homes built before 1978
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Brule County, South Dakota
Overview
Brule County in South Dakota covers 5 ZIP codes with an average Home Safety Score of C (59/100).
1 of 5 ZIP codes have recorded EPA violations. 2 health-based violations have been documented.
← Back to South Dakota water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.